465
Command: timers spf <spf-delay> <spf-holdtime>
no timers spf
Function:
Adjust route calculation timer value.The “
no timers spf
” restores the relevant
value to default
Parameter: <spf-delay>
5 seconds by default
<spf-holdtime>
10 seconds by default
Command Mode:
OSPFv3 protocol mode
Usage Guide:
In this command the delay time between receiving topology change and
SPF calculation, and further configured the hold time between two discontinuous SPF
calculations.
Example:
Switch#config terminal
Switch(config)#router ipv6 ospf
Switch(config-router)#timers spf 5 10
13.7.4 OSPFv3 Examples
Examples 1:OSPF autonomous system.
This scenario takes an OSPF autonomous system consists of five ES3628EA switch
for example, where layer3 SwitchA and Switch Emake up OSPF area 0, layer3 SwitchB
and SwitchC form OSPF area 1 (assume vlan1 interface of layer3 SwitchA belongs to
area 0), layer3 SwitchD forms OSPF area2 (assume vlan2 interface of layer3 SwitchE
belongs to area 0). SwitchA and SwitchE are backbone layer3 switches, SwitchB and
SwitchD are area edge layer3 switches, and SwitchC is the in-area layer3 switch.
Fig 13-9 Network topology of OSPF autonomous system.
The configuration for layer3 SwitchA and SwitchE is shown below:
Layer3 SwitchA:
! Enable OSPFv3 protocol, configure router ID
SwitchA(config)#router IPv6 ospf
Area 1
Area 0
Area 2
SWITCHD
E1/1:2100:1:1::1/64
vlan2
E1/2:
2010:1:1::1/64
vlan1
E1/1:
2010:1:1::2/64
vlan1
E1/2:
2020:1:1::1/64
vlan3
E1/1: 2020:1:1::2/64
vlan3
E1/2:
2030:1:1::1
vlan3
E1/1:2100:1:1::2/64
vlan2
E1/1:
2030:1:1::2/64
vlan3
SwitchE
SwitchA
SwitchD
SwitchC
SwitchB
